The BD Diesel Upgraded Exhaust Manifold Kit addresses a known design characteristic in 2011-2016 Ford 3.5L EcoBoost engines and 2015-2024 Transit models. The original equipment manufacturer (OEM) design does not utilize all available stud locations on the cylinder head, which can contribute to issues such as warped exhaust manifolds, broken exhaust studs, and blown manifold gaskets over time.
Key Features:
- Enhanced Stud Utilization: This manifold design takes advantage of all 11 exhaust stud locations present on the Ford 3.5L EcoBoost cylinder head, unlike the factory manifold which uses only 8. This increased number of studs provides a more secure and even clamping force, significantly reducing the likelihood of warping and gasket failure.
- Improved Exhaust Flow: Engineered for better performance, this manifold exhibits an average flow increase of 25.9% compared to the OEM manifold (BD average: 139 cfm/port vs. OEM average: 110 cfm/port). This enhanced flow can contribute to improved engine efficiency and power.
- Increased Durability: Constructed from thicker-walled, high-silicon ductile cast iron, this manifold is specifically designed to resist thermal warping, a common problem with the original manifolds.
- Comprehensive Hardware Included: Each kit comes complete with 22 exhaust spacers and 22 class 8.8 studs that are 15mm longer than the OE studs. This design, along with the included new studs and nuts, further enhances the overall thermal durability and provides all necessary components for installation.
- Direct Replacement: This kit directly replaces the following Ford OEM part numbers: BL3Z-9430-B, BL3Z-9430-D, BL3Z-9431-B, and BL3Z-9431-D, ensuring a proper fit.
- 50-State Legal: This product is legal for use in all 50 states.
Vehicle Fitment:
- Ford Expedition 2015-2017
- Ford F-150 2011-2016
- Ford F-150/Lobo 2015-2016
- Ford Transit 2015-2024
- Lincoln Mark LT 2011-2014
- Lincoln Navigator 2015-2017
Note: BD Diesel suggests the optional 1043002 addition parts kit for potentially easier installation.